1 /* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "Hyphenation.h" 28 29 #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD) 30 31 #include "AtomicStringKeyedMRUCache.h" 32 #include "TextBreakIteratorInternalICU.h" 33 #include <wtf/ListHashSet.h> 34 #include <wtf/RetainPtr.h> 35 36 namespace WebCore { 37 38 #if !PLATFORM(WIN) || (defined(MAC_OS_X_VERSION_10_7) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7) 39 40 template<> 41 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForNullKey() 42 { 43 RetainPtr<CFLocaleRef> locale(AdoptCF, CFLocaleCopyCurrent()); 44 45 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0; 46 } 47 48 template<> 49 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForKey(const AtomicString& localeIdentifier) 50 { 51 RetainPtr<CFStringRef> cfLocaleIdentifier(AdoptCF, localeIdentifier.createCFString()); 52 RetainPtr<CFLocaleRef> locale(AdoptCF, CFLocaleCreate(kCFAllocatorDefault, cfLocaleIdentifier.get())); 53 54 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0; 55 } 56 57 static AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >& cfLocaleCache() 58 { 59 DEFINE_STATIC_LOCAL(AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >, cache, ()); 60 return cache; 61 } 62 63 bool canHyphenate(const AtomicString& localeIdentifier) 64 { 65 return cfLocaleCache().get(localeIdentifier); 66 } 67 68 size_t lastHyphenLocation(const UChar* characters, size_t length, size_t beforeIndex, const AtomicString& localeIdentifier) 69 { 70 RetainPtr<CFStringRef> string(AdoptCF, CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, reinterpret_cast<const UniChar*>(characters), length, kCFAllocatorNull)); 71 72 RetainPtr<CFLocaleRef> locale = cfLocaleCache().get(localeIdentifier); 73 ASSERT(locale); 74 75 CFIndex result = CFStringGetHyphenationLocationBeforeIndex(string.get(), beforeIndex, CFRangeMake(0, length), 0, locale.get(), 0); 76 return result == kCFNotFound ? 0 : result; 77 } 78 79 #else 80 81 bool canHyphenate(const AtomicString&) 82 { 83 return false; 84 } 85 86 size_t lastHyphenLocation(const UChar*, size_t, size_t, const AtomicString&) 87 { 88 ASSERT_NOT_REACHED(); 89 return 0; 90 } 91 92 #endif // PLATFORM(WIN) && (!defined(MAC_OS_X_VERSION_10_7) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7) 93 94 } // namespace WebCore 95 96 #endif // !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD) 97
